Mississippi River Transmission Corp.

Third Revised Volume No. 1

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Effective Date: 05/01/1997, Docket: RP97- 73-005, Status: Effective

Fourth Revised Sheet No. 224 Fourth Revised Sheet No. 224 : Superseded

Superseding: Third Revised Sheet No. 224

GENERAL TERMS AND CONDITIONS

(Continued)

19. BILLING, STATEMENTS, PAYMENT AND RECORDS

19.1 MRT shall, no later than the ninth (9th) business day

of each month,prepare invoices for all charges incurred by

Customer during the previous month, pursuant to the

applicable rate schedule based on actual quantities

delivered, or if not available, best estimates; provided,

however, that adjustments shall be made to such quantities in

subsequent months' invoices, as required based on actual

quantities delivered. MRT shall submit each Customer's

invoice by mail, telecopy, overnight mail or hand delivery.

If for any reason the presentation of an invoice by MRT to

Customer is delayed until after the ninth (9th) business day

of the month, then payment by Customer may be delayed but

only in accordance with the provisions contained herein. As

soon as possible following the receipt of all necessary

information, MRT shall submit to Customer an invoice for billing

based on such information. In the event the quantities of gas

delivered to or received by MRT are not measured at the standard

pressure base, the factor to be utilized to convert such delivered

quantities shall be in accordance with GISB Standards and set

forth in MRT's procedures as may be established and publicized

from time to time. For reporting purposes, BTU conversion factor

should be reported to not less than three (3) decimal places and

Pressure Base conversion factors should be reported to not less than

six (6) decimal places. For calculation purposes, not less than

six (6) decimal places should be used for both conversion factors.

Customer shall pay MRT by electronic funds transfer to a

designated bank account established by MRT for invoiced amounts

equal to or greater than $50,000. For invoiced amounts less than

$50,000, Customer shall pay MRT by check to MRT's designated office,

Post Office Box or, at Customer's election, by electronic funds

transfer to a designated bank account established by MRT. Subject

to Section 19.3 below, payments for all charges billed in

accordance with the provisions of this tariff shall be made

by Customer to MRT within ten (10) days of the postage meter

date, postmark date, telecopy date, delivery date of

overnight mail or date of hand delivery of the Customer's

bill. Payments made by electronic funds transfer shall be

considered to have been made on the date when such payment

is received by MRT.

19.2 In the event Customer fails to pay all of the amount due

MRT within the ten (10) day period, interest thereon shall accrue

from the due date at the maximum allowable interest permitted under

and in accordance with 18 C.F.R. Section 154.67 or any superseding

regulations of the Commission. If such failure to pay continues for

thirty (30) days after payment is due, MRT, upon ten (10) days'

prior written notice to Customer, may suspend further receipt

and/or delivery of gas until such past due amount is paid, or

satisfactory credit arrangements have been made in accordance with

Section 5.4(k) of these General Terms and Conditions. If Customer

fails to pay or make satisfactory credit